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Tankless water heater repair pros in Mosinee

Avatar for Superior Roofing of Portage Co LLC
Superior Roofing of Portage Co LLC
4701 Industrial Park Rd, Suite B
4.33(
6
)
Approved Pro
Superior Roofing of Portage Co LLC
4701 Industrial Park Rd, Suite B
4.33(
6
)
Approved Pro
Customers say: Quick response
223 local quotes requested
20 years of experience

Locally owned & operated with over 30 years of experience. We have been serving Central Wisconsin for the past 15+ years. We are a full-service residential and commercial contractor that provides roofing, siding, remodeling, and other services to our area. Our company is fully licensed and insured, with lead certifications. While we are happy to take on big jobs, we are family owned and operated with a small-town feel. You're never a number, you're a neighbor. We pride ourselves in providing a superior customer experience and quality work at an affordable cost. We build a relationship with our customers to ensure they have a rewarding experience and end results they love for years to come. By supporting a small, local business, you are giving back to the community we all love to live in.

"Jay and his crew are the guys for your job! They exceeded our expectations and then some. Jay was always responsive to all our communications via email, usually responding even after hours and on weekends. The guys that worked in our house were very respectful of our space and cleaned up very nicely after themselves. Not only did they do what we asked, but they also addressed an unrelated issue when working in our house. We hired them for basement remodeling, and they looked at our leaking bathroom vent. This team is amazing, no doubt about it!"

Josh Z on January 2024

Locally owned & operated with over 30 years of experience. We have been serving Central Wisconsin for the past 15+ years. We are a full-service residential and commercial contractor that provides roofing, siding, remodeling, and other services to our area. Our company is fully licensed and insured, with lead certifications. While we are happy to take on big jobs, we are family owned and operated with a small-town feel. You're never a number, you're a neighbor. We pride ourselves in providing a superior customer experience and quality work at an affordable cost. We build a relationship with our customers to ensure they have a rewarding experience and end results they love for years to come. By supporting a small, local business, you are giving back to the community we all love to live in.

"Jay and his crew are the guys for your job! They exceeded our expectations and then some. Jay was always responsive to all our communications via email, usually responding even after hours and on weekends. The guys that worked in our house were very respectful of our space and cleaned up very nicely after themselves. Not only did they do what we asked, but they also addressed an unrelated issue when working in our house. We hired them for basement remodeling, and they looked at our leaking bathroom vent. This team is amazing, no doubt about it!"

Josh Z on January 2024


Avatar for A&M General Construction Services LLC
A&M General Construction Services LLC
4.63(
8
)
Approved Pro
A&M General Construction Services LLC
4.63(
8
)
Approved Pro
Customers say: True professional
1421 local quotes requested
4 years of experience

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"After looking for 1 year for a contractor, we looked at Angi. We were connected with Antonio of A&M General Construction, and we walked around the house explaining what we wanted. As we explained our plans, he asked questions but never said we won't be able to do that or change our minds to do something we didn't want. We had them remove four windows and replace 3 of them them were able to get exactly the windows we wanted. Took out two walls and opened up the room. Opened a walkway into the bathroom. Moved an intake vent. Painted, layed tile, converted bathtub into shower. We were very happy with the results. My wife loves her new master bedroom."

Douglas K on February 2025

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. Call or message us to schedule an estimate today!

"After looking for 1 year for a contractor, we looked at Angi. We were connected with Antonio of A&M General Construction, and we walked around the house explaining what we wanted. As we explained our plans, he asked questions but never said we won't be able to do that or change our minds to do something we didn't want. We had them remove four windows and replace 3 of them them were able to get exactly the windows we wanted. Took out two walls and opened up the room. Opened a walkway into the bathroom. Moved an intake vent. Painted, layed tile, converted bathtub into shower. We were very happy with the results. My wife loves her new master bedroom."

Douglas K on February 2025


Avatar for Neli Virtual Appliance Repair
Neli Virtual Appliance Repair
143 Charlotte Ave
4.29(
573
)
Approved Pro
Neli Virtual Appliance Repair
143 Charlotte Ave
4.29(
573
)
Approved Pro
Customers say: Super punctual
55338 local quotes requested
9 years of experience

Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!

"It was an excellent experience! My old Kenmore fridge (probably from the 90s) quit cooling/defrosting. After looking to replace it and finding thanks to the pandemic refrigerators are on backorder for months, I called 3 appliance repair companies who didn't call me back. I found Neli and was able to set up an appointment at a time I picked.. An incredibly patient tech (Chris C.) came chat on at the appointed time. I waited about 5 mins as he was wrapping up another call. I walked me through the diagnosis using a virtual support app on my phone. He was able to help me with taking things apart, helped me use our multimeter, and diagnosed the problem. I can do this repair myself. He gave me the exact part numbers and told me what I need to do. All for $35 for an hour on a Sunday. I can't believe how great this was. I thought I had to replace my refrigerator, but for $35 + $111 in parts (I could have gone cheaper but chose OEM) my refrigerator will return to health. Their website lists the tools you will need for a diagnosis/repair, make sure you have them ready. For refrigerators, you need a screwdriver (flat & phillips), a socket set, a multimeter, and theoretically a pair of pliers but I didn't use them. Also make sure your phone is charged (lesson learned)."

Deborah C on November 2020

Virtually diagnose and/or repair your appliances and HVAC units today without anyone stepping foot inside your home! Starting at $45 you can take control of your home appliance repairs via video chat with a certified technician when it’s convenient for you. Make an appointment today on our website. Neli's certified technicians will work with you to conduct either a diagnosis to find out what's wrong or a repair. You will use Neli’s advanced video chat technology during your appointment. Schedule your appointment today at nelihome.com or call us at 833-876-0900!

"It was an excellent experience! My old Kenmore fridge (probably from the 90s) quit cooling/defrosting. After looking to replace it and finding thanks to the pandemic refrigerators are on backorder for months, I called 3 appliance repair companies who didn't call me back. I found Neli and was able to set up an appointment at a time I picked.. An incredibly patient tech (Chris C.) came chat on at the appointed time. I waited about 5 mins as he was wrapping up another call. I walked me through the diagnosis using a virtual support app on my phone. He was able to help me with taking things apart, helped me use our multimeter, and diagnosed the problem. I can do this repair myself. He gave me the exact part numbers and told me what I need to do. All for $35 for an hour on a Sunday. I can't believe how great this was. I thought I had to replace my refrigerator, but for $35 + $111 in parts (I could have gone cheaper but chose OEM) my refrigerator will return to health. Their website lists the tools you will need for a diagnosis/repair, make sure you have them ready. For refrigerators, you need a screwdriver (flat & phillips), a socket set, a multimeter, and theoretically a pair of pliers but I didn't use them. Also make sure your phone is charged (lesson learned)."

Deborah C on November 2020


Stainless Specialists Inc
T7441 Steel Ln
5.00(
4
)
Stainless Specialists Inc
T7441 Steel Ln
5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Additional address - PO Box 687 Wausau, Wi 54402. Additional phone number - (715) 453-4237, (715) 453-5739, (715) 539-3212.

Additional address - PO Box 687 Wausau, Wi 54402. Additional phone number - (715) 453-4237, (715) 453-5739, (715) 539-3212.


Grade A Contracting/Midwest Energy Solutions
13260 Glendale Rd
No reviews
Grade A Contracting/Midwest Energy Solutions
13260 Glendale Rd
No reviews
23 years of experience

We sell & install Reflective Foil Insulation as well as being a Building contractor for home and business.

We sell & install Reflective Foil Insulation as well as being a Building contractor for home and business.


KC Home Improvement LLC
1058 Blueberrry Lane
5.00(
11
)
KC Home Improvement LLC
1058 Blueberrry Lane
5.00(
11
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Small business fully insured and licensed with 18+ years in the trade. I accept projects big and small and have from 1-3 workers (including myself) to get the job done right. With a select list of contacts (electricians/plumbers/hvac), most jobs can be completed with one phone call. We will start with a signed estimate and discuss payment at that point. Most projects I will invoice upon successful and satisfactory completion.

"Excellent beyond our expectations. Great communication. Exceptional work. Wonderful ability to predict and then work to a timeline predicted. I cannot recommend more highly. We built a custom house 20 years ago and thought the contractor used at that time could never be replaced. Although Kris does not, to my knowledge, do full house construction, he displayed the management skill and trade skill to at least equal the contractor we used to build the custom home 20 years earlier."

Tim Z on September 2018

Small business fully insured and licensed with 18+ years in the trade. I accept projects big and small and have from 1-3 workers (including myself) to get the job done right. With a select list of contacts (electricians/plumbers/hvac), most jobs can be completed with one phone call. We will start with a signed estimate and discuss payment at that point. Most projects I will invoice upon successful and satisfactory completion.

"Excellent beyond our expectations. Great communication. Exceptional work. Wonderful ability to predict and then work to a timeline predicted. I cannot recommend more highly. We built a custom house 20 years ago and thought the contractor used at that time could never be replaced. Although Kris does not, to my knowledge, do full house construction, he displayed the management skill and trade skill to at least equal the contractor we used to build the custom home 20 years earlier."

Tim Z on September 2018


U.S. Water Heating Solutions
Illinois, Indian, Iowa, Michigan, Wisconsin
No reviews
U.S. Water Heating Solutions
Illinois, Indian, Iowa, Michigan, Wisconsin
No reviews
7 years of experience

U.S. Water Heating Solutions, LLC serves the expanded coverage areas of Illinois, Wisconsin, Indiana, Michigan, and Iowa for both residential and commercial water heating equipment customers. Our 24/7/365 emergency repair and replacement services are available to all of our customers. Our ability to restore HOT WATER and get our customers back up and running rapidly is our focus. Each of our service vehicles are fully stocked with the parts and tools to restore HOT WATER for all of the industry's leading manufacturers of water heaters and boilers. We will continue to grow, develop, and innovate the market as a fully-stocked parts service provider for all of the major manufacturers. Our technicians are factory trained and certified.

U.S. Water Heating Solutions, LLC serves the expanded coverage areas of Illinois, Wisconsin, Indiana, Michigan, and Iowa for both residential and commercial water heating equipment customers. Our 24/7/365 emergency repair and replacement services are available to all of our customers. Our ability to restore HOT WATER and get our customers back up and running rapidly is our focus. Each of our service vehicles are fully stocked with the parts and tools to restore HOT WATER for all of the industry's leading manufacturers of water heaters and boilers. We will continue to grow, develop, and innovate the market as a fully-stocked parts service provider for all of the major manufacturers. Our technicians are factory trained and certified.


C.S. Home & Office
No reviews
C.S. Home & Office
No reviews

C.S. Home and Office is a hybrid company that specializes in small residential projects, such as small fixes, painting, door installation, lights, ceiling fans, and more! We also tackle large projects, such as flooring or kitchen cabinets and countertops. We also crossover into the commercial realm, installing office furniture and office cabinetry.

C.S. Home and Office is a hybrid company that specializes in small residential projects, such as small fixes, painting, door installation, lights, ceiling fans, and more! We also tackle large projects, such as flooring or kitchen cabinets and countertops. We also crossover into the commercial realm, installing office furniture and office cabinetry.


Tri-county county home improvements
Unknown
No reviews
Tri-county county home improvements
Unknown
No reviews
10 years of experience

All home improvement needs

All home improvement needs


Krell Distributing Co Inc
211 Herald Place
No reviews
Krell Distributing Co Inc
211 Herald Place
No reviews
53 years of experience

Additional DBA - Krell Industries. Family owned & operated. Nationwide service.

Additional DBA - Krell Industries. Family owned & operated. Nationwide service.

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Tankless water heater installations FAQs

Professional flushing services for tankless water heaters run about $200 per visit. This essential maintenance procedure eliminates mineral deposits from critical components, particularly the heat exchanger. While homeowners can purchase DIY flushing kits for $50 to $100, professional service offers the advantage of thorough cleaning with proper techniques. Professional maintenance also includes inspection of additional components that might need attention.

Industry experts and manufacturers recommend annual maintenance for tankless water heaters, with more frequent service (every six months) for homes with challenging water conditions. This regular attention prevents efficiency losses and extends the unit's operational lifespan. Watch for warning signs like reduced water temperature, inconsistent performance, or system error codes that might indicate maintenance is needed sooner than scheduled.

Neglecting regular maintenance allows mineral scale to accumulate within your system, restricting water flow and reducing heating efficiency. This forces your unit to work harder, consuming more energy while delivering less satisfactory performance. Over time, this strain can lead to component failures, inconsistent water temperatures, and premature system replacement. Additionally, most manufacturers require documentation of regular maintenance to honor warranty coverage for major components.

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